Bicycle sprocket crank arm



FIG. 1 is a side elevational view showing my new design for a bicycle sprocket crank arm with its opposite side being a mirror image and the sprocket shown in broken lines;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a bottom view thereof; and,

FIG. 5 is a transverse cross section taken in the direction of arrows 5--5 of FIG. 1.

The broken line showing of a sprocket is for illustrative purposes only and forms no part of the claimed design. 

The ornamental design for bicycle sprocket crank arm, as shown and described. 